Electrical current-control device



C. WAGNER. ELECTRICAL CURRENT CONTROL DEVICE.

APPLICATION FILED MAR. 25, 1920.

Patented Sept. 13, 1921.

INVENTOR. (fig/Zea h gher BY 7 UNITED STATES CHARLES WAGNER, or NEW YORK, N. Y.

ELECTRICAL CURRENT-CONTROL DEVICE.

Specification of Letters Patent. Patented Sept. 13, 1921.

Application filed March 25, 1920. Serial No. 368,674. i

To all whom it may concern:

Be it known that I, CHARLES WAGNER, a citizen of the United States, residing at #208 Bowery, in the city of New York and State of New York, have invented certain new and useful Improvements in Electrical Current Control Devices, of which the following, is a specification.

This invention relates to electrical current controlling devices and more particularly a device somewhat similar to a rheostat for reducing current either alternating or direct.

One of the objects of the present invention is to provide a device of the above character particularly adapted for use in con nection with electrical instruments such, for example, as a tattooing needle which will be of simple and practical construction, inexpensive to manufacture and assemble and which will be reliable and efficient in use and operation.

A further object is to provide a small, compact, self-contained device particularly adapted for the above use which may be easily packed and shipped and quickly put into operation regardless of whether the source of current is of the alternating or direct variety.

Other objects will be in part obvious and in part hereinafter pointed out.

Reference is made to the accompanying sheet of drawing forming part of the specification in which,

Figure 1, is a perspective view of the complete device as manufactured, certain parts being broken away for the sake of cl-earness, the wires being shown in dotted position.

Fig. 2 is a diagrammatic view showing the wiring arrangement.

Referring now to the drawings in detail, J indicates a firm, substantial, insulated base of suitable heat proof material such as is known in the trade as asbestos lumber. The top of the device is protected by preferably a sheet metal steel covering plate H interposed between which, and insulated therefrom, are two relatively flat asbestos wood plates K and L wound from end to end by a portion of a wiring system to form coils, both coils being covered with a suitable cement-like paint toprevent them from oxidizing.

At one side of the lower plate is a bar P upon which is adapted to slide a contact switch A, the shoe portion engaging with the exposed edges of the coiled circuit L. As will appear more clear from reference to Fig. 2 an insulated cord FG is adapted to be connected to any suitable source of electric supply such as a lamp socket, the two wires of which branch, one forming the coil K and the other the coil L. The wire from the point G is provided with a shunt circuit branching at the point C and communicating with the bar P at the point H upon which bar the sliding switch A may be moved along to cut resistance in or out of the circuit by means of the contact A. In this manner the current entering the device may be at the customary 110 volts which is reduced at the binding posts D and E to anywhere from 0 to 30 volts as required, the electric current being automatically balanced between these points.

Perhaps the above will be more clear from the following Suppose the circuit D and E is closed through the tattooing needle, for example, in which case current will pass from point F through the resistants K and as the resistance between D and E is less than the resistance of the coil L the greater part of the current will go through the points DE or the device being operated. If a tattooing needle is being used where magnets are energized the current from DE to CG will be disconnected whereupon the current will automatically then go from F to B, thence through the point C to G in the moment of change of cycles between the points F and G. The current from D and E can then go through the bar P and switch A thence to BC and terminal G or vice versa through the points PMCG.

It willthus be seen that the present device provides a simple and practical apparatus adapted to accomplish, among others, all the advantagesherein set forth.

What I claim is:

1. In a device of the character described, in combination, a base, two insulated asbestos boards placed apart above said base and provided with a suitable cover, connected coils mounted upon said boards and connected with each other, and a suitable source of electrical energy, outlet terminals, and a slidable switch interposed between one of said outlet terminals and one of said coils whereby the reduction in current may be regulated.

2. In a device of the character described, in combination, a base, two insulated asbestos boards placed apart above said base and provided with a suitable cover, connected 5 coils mounted upon said boards and connected with each other, and a suitable source of electrical energy, outlet terminals, and a slidable switch interposed between one of said outlet terminals and one of said coils 10 whereby the reduction of current may be regulated, said coils being, coated to prevent oxidation except for the place of engagement with said slidable switch.

In testimony whereof I afiix my signature in the presence of two witnesses.

CHARLES WVAGNER.

WVitnesses:

ALBERT M. LURZMAN, ADAM OGINT. 

